params:
  not_blank_start:
    name: 'not_blank_開始日'
    filters:
      - DateTime#date:
          prefix: not_blank_start
    validators:
      - Blank#not_blank
  start:
    name: '開始日'
    filters:
      - DateTime#date:
          prefix: start
    validators:
      - DateTime#date:
          prefix: start
  greater_start:
    name: &greater_start_name 'greater_開始日'
    filters:
      - DateTime#date:
          prefix: greater_start
  greater_end:
    name: 'greater_終了日'
    filters:
      - DateTime#date:
          prefix: greater_end
    validators:
      - DateTime#greater_than_equal:
          target: greater_start
          target_name: *greater_start_name
  greater2_start:
    name: &greater2_start_name 'greater2_開始日'
    filters:
      - DateTime#date:
          prefix: greater2_start
  greater2_end:
    name: 'greater2_終了日'
    filters:
      - DateTime#date:
          prefix: greater2_end
    validators:
      - DateTime#greater_than:
          target: greater2_start
          target_name: *greater2_start_name